Physics – Condensed Matter – Superconductivity
Scientific paper
2009-11-30
Physics
Condensed Matter
Superconductivity
4 figures
Scientific paper
We have imaged spontaneously created arrays of vortices (magnetic flux quanta), generated in a superconducting film quenched through its transition temperature at rates around $10^9 K/s$. Spontaneous appearance of vortices is predicted by Kibble-Zurek and by Hindmarsh-Rajantie models of phase transitions under non-equilibrium conditions. Differentiating between these models requires a measurement of the internal correlations within the emerging vortex array. In addition to short range correlations predicted by Kibble and Zurek, we found unexpected long range correlations which are not described by any of the existing models.
Golubchik Daniel
Koren Gad
Polturak Emil
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